How do you fight bushfires of this size?

Two
bushfires burning in Gippsland and Victoria’s north-east are believed
to have joined overnight, forming one massive firefront.

The head of the blaze is estimated to span 240km in length.

Together the bushfires have scorched about 250,000 hectares and continue to burn out of control.

There has got to be a more established technology for dealing with such things, as brushfires seem to be something that one could easily develop a workable tactic to handle quickly — without it having to envelop half a state. Anyone know the answer to such?